Installation Instructions

7
Boiler block assembly
Logano G615 - Subject to technical modifications
27
7.8 Boiler water connections
Please observe the following information regarding the
boiler connection to the system of pipes. These
instructions are important for trouble-free operation.
The weld neck flange is fitted to the top boiler hub if the
return is connected at a later stage.
The weld neck flange and flat gasket are shown.
B The supply connection flange is required for
connecting the supply at a later stage.
Fig. 27 Fitting a flange
1 Supply connection flange
2 Flat gasket
3 Top boiler hub (return connection)
4 Flat gasket
5 Weld neck flange
NOTICE: Risk of system damage from
leaking connections.
B All pipe connections to the boiler must be
free of stress and tension.
NOTICE: System damage due to deposits,
local overheating, and corrosion.
B As a basic rule, clean and flush existing
systems thoroughly before connecting
new boiler.
B Install a desludging unit in the boiler return
to prevent damage to the boiler.
The supply and return manifolds are included
in the Buderus scope of delivery.
NOTICE: Risk of system damage from
temperature stresses.
B Install a fill valve on the system side.
B When the heating system is in operation,
do not fill it via the boiler fill & drain valve.
Instead, fill it on the system side.